LTC2851CDD#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC2851CDD#TRPBF is a high-speed RS485/RS422 transceiver designed for use in industrial and automotive applications. It provides robust communication over long distances, making it suitable for various data transmission systems.

Characteristics: - High-speed data transmission - Robust communication over long distances - Industrial and automotive grade - Low power consumption - ESD protection - Wide supply voltage range

Package: LTC2851CDD#TRPBF comes in a 10-lead DFN package.

Essence: This IC serves as a reliable interface between microcontrollers or other digital devices and the RS485/RS422 bus. It ensures secure and error-free data transmission in harsh environments.

Packaging/Quantity: The LTC2851CDD#TRPBF is typically available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Data Rate: Up to 20 Mbps
• Operating Temperature Range: -40°C to 85°C
• ESD Protection: ±15kV Human Body Model
• Receiver Input Threshold: ±200mV
• Driver Output Voltage Swing: ±2V into 54Ω load

Pin Configuration

The LTC2851CDD#TRPBF has the following pin configuration:

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| | --| VCC GND |-- Power Supply Pins --| A B |-- Differential Bus Pins --| RO RE |-- Receiver Output and Enable Pins --| DE DI |-- Driver Enable and Input Pins --| Y Z |-- Driver Output Pins |_______________| ```

Functional Features

1. High-Speed Data Transmission: The LTC2851CDD#TRPBF supports data rates of up to 20 Mbps, enabling fast and efficient communication.

2. Robust Communication: With its RS485/RS422 compatibility, this transceiver ensures reliable communication over long distances, even in noisy industrial environments.

3. Low Power Consumption: The IC is designed to minimize power consumption, making it suitable for battery-powered applications.

4. ESD Protection: The ±15kV Human Body Model ESD protection safeguards the IC from electrostatic discharge, enhancing its durability.

5. Wide Supply Voltage Range: The LTC2851CDD#TRPBF operates within a wide supply voltage range of 3V to 5.5V, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Robust communication in harsh environments - Low power consumption - ESD protection for enhanced durability - Wide supply voltage range for versatility

Disadvantages: - Limited pin count may restrict complex system integration - Requires additional external components for complete functionality

Working Principles

The LTC2851CDD#TRPBF functions as an interface between a microcontroller or digital device and the RS485/RS422 bus. It converts the logic-level signals from the microcontroller into differential signals suitable for transmission over long distances. The receiver section of the IC converts the differential signals back into logic-level signals for the microcontroller to process.

Detailed Application Field Plans

The LTC2851CDD#TRPBF finds applications in various fields, including: 1. Industrial automation systems 2. Automotive electronics 3. Building automation 4. Process control systems 5. Instrumentation and measurement equipment

Alternative Models

1. MAX485EESA+: This IC offers similar functionality and features as the LTC2851CDD#TRPBF, with a different pin configuration.
2. SN65HVD485EDR: Another alternative with comparable specifications and performance characteristics.

These alternative models can be considered based on specific application requirements and availability.

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